The leftist Association of Community Organizations for Reform Now (ACORN) and its affiliated organizations have been the subject of great controversy. Concerns have been raised about fraudulent voter registrations, intimidation tactics, involvement in the housing market meltdown, and a partnership with U.S. Census Bureau. Most importantly, Barack Obama has been closely linked to the organization. Judicial Watch is on the front lines investigating ACORN’s activities through the use of such tools as the Freedom of Information Act.